Year % gross 1991 0.760010004043579 1992 0.742990016937256 1994 0.782490015029907 1996 0.705889999866486 1999 0.724659979343414 2001 0.610580027103424 2003 0.831049978733063 2004 0.893090009689331 2005 1.04934000968933 2008 1.28293001651764 2010 1.32974994182587 2011 1.53742003440857 2013 1.44893002510071 2016 1.67707002162933